Coin collector



y 1933. G. BINIEK ET AL 1,908,948

COIN COLLECTOR I Fi'led Jan. 24, 1931 El III-5 Birfilk Hlinric h Lmsnlr Hit-wish D 5111:

Patented May 16, 1933 UNITED STATES PATENT oFFlicE GEORG BINIEK, HEINRICH LANGNER, AND HINRIGH DtiI-ILE, 0F BERLIN, (Bi-ElRllll'Al l'Y,

ASSIGNORS T0 TELEPHON-APPARAT FABRIK E. ZWEITUSCI-I CHLARLOTTENBUB-G, BERLI GERMANY' com COLLECTOR Application filed January 24, 1931, Serial No. 510,874, and in Germany March 4, 1930.

. The present invention relates to a coin collector which, attached to a telephone instrument for automatic operation or normal construction forms a telephone pay-call station.

' 5 The coin collector, according to theinvention, is distinguished by a particularly simple construction and requires no mechanical coupling between the coincollector and the instrument. For the attachment of the coin collector only a few simple electrical connections are required. A further advantage of the new arrangement consistsin that, at an outgoing call, notification is given in the receiver until the insertion of the charge- According to the invention these advantages are achieved by the use of a magnet preventing the fall of the coin which, at the operation of the dial, is energized and remains energized in a locking circuit parallel to the microphone and telephone over its own contact until it is caused to release by the insertion of a coin. In order to further increase the reduction in current in the microphone and telephone circuit a higher resistance is connected up in series with the microphone and telephone by the contacts of the magnet. The speaking currents generated by shouting into the receiver are'equalized over the low resistance winding of the magnet so that the called subscriber cannot understand the speaker at the calling station. On the other hand, the division of current through the microphone, telephone and magnet is so calculated that the incoming speaking current is sufficient to energize the telephone in'such a manner that the speaker can hear the reply of the called subscriber. In order to make certain the release of the magnet controlling intelligible speech and the drop of the coin on its insertion a coin-contact is used, according to the invention, which'is tl rown over when the coin is heldin position in the coin chute, which is eflected by the attracted armature of the magnet. The coin contact only returns to the normal position when the magnet has been deenergized.

Below, an embodiment of the invention is described.

Fig. 1 shows the coin collector in, elevation with removed cover.

AND COMPANY, or p i Fig. 2 shows a side View of the 'coincol- The mechanical construction of the coin r collector as shown in Figs. 1 and 2 is described in the following: v

In the housing 1-is a coin channel 2, which is fixed to the base plate by bolts 3. The magnet R is also fixed on to the plate by a right angular plate 4. a On the armature 5 of the magnet R a lever 6 is-fitted,-the one end of Which projects through the end of the coin channel 2. When the armature of magnet Bis attracted, a coin 7, inserted in the coin channel 2, is held fast by the projection 6. Inthis arrested positionfof the coin, the coin contact mk is 'thrown over by the coin, The coin contact mic is fixed by a bearing socket 15 to thechannel wall 2. Inlthe deenergized condition of; the armature 5 the coin 7 can uninterruptedly run through the coin channel and drop into the coin container 8. There is also in the housing 1 'a slot 9. Behind this insertion slot this a special coin guarding device Which consists The fixed guiding wall 10 and the movable guiding Wall 12 are bent at their ends so that according to the position of the movable flap 12, this covers either the insertion slot 9 or the discharging slot in the coin channel 2 When a coin is inserted the stop 12 is moved in the direction of the arrow by the weight of the coin, and the path for the coin in the drop-in channel 2 is clear. If anybody inserts a wire in the insertion slot 9 with a nefarious purpose the slot 12 will be thrown over by the pressure of the Wire on the lower part of same, with theresult that the WllGlS held between the upper end of the in Fig. 8. In Fig. 3 the switching components belonging to the telephone apparatus are shown above the dotted dividing line, while on the lower side of the dividing line the switching members in the coin collector are shown. The designations in Fig. 3 have the following meaning: HU represents the switchhook contact, M

the microphone, F the receiver. W21, W62,

tact use is closed and the magnet R is energized. After the release of the dial, the magnet R- remains energized over its own contact 9",, in the following circuit:

' 1. Line a, mi, I-IU, 1', line b. v

The following circuit is completed in parallel to this locking circuit of the magnet R.

'2. Line a, mi, I-IU, W713, M, J, line b.

As the resistance of the magnet R must be comparatively low and the resistance V23,

compared thereto, should be high, the current flowing over the microphone is so insignificant that speech from the station cannot take place. A connection by speaking into the receiver is also impossible as the speaking current generated thereby is too weak, due to the shunting effect of the magnet R, to produce any eifect in the receiver at the called station. The incoming speaking current, on the other hand, is so strong that it can energize the receiver despite the shunting over the magnet R, with the result that the speaker at the calling station can hear the reply of the called subscriber. After the reply of the required subscriber the speaker will have to insert a coin 'by which the coin contact mla is thrown over. The contact mic short-circuits the magnet R with the consequence that this releases after a short Period.

As will be seen from Figsl and 2, the contact mk is only opened when the magnet R has released. In the normal position. of con tact r the resistance W2'3is short-circuited and the circuit over magnet R is parallel with the microphone is broken. full feeding current flows over the microphone.

When such a station is called, it is at once prepared for conversation by the lifting up of the receiver without having to first insert a coin. The magnet R is not energized as the dial has not been operated. In order Now the to attach the coin collector to a normal telephone station it is only necessary to remove the crossed connections and connect the leads shown by dotted lines to the coin collector.

What is claimed is:

1. In combination with a telephone set of an automatic telephone system wherein the subscriber sets up connections to calledlines by means of an impulse transnntting device havlng off-normal spring operated upon the winding up operation 0 the calling device; a paystation device including a magnet energized consequent to the closure of the calling device off-normal springs and effective upon eluding a magnet, an operating circuit for sand magnet including said olf-normal con- 'ta-cts,-a high resistance" holding circuit for said. magnet including said transmitter, and contacts actuated by a com deposited 1n said 3. mechanism to break down said lngh resistance circuit; Y

, i 8. In combination with a'subs'tation of an automatic'telephone system wherein an impulse transmitting device having off-normal springs is employed to extend connections to desired lines. a paystation mechanism having a magnet connected across the line in series with the off-normal springs-andop'eratedconsequent to the operation of said springs-upon a call being initiated, contacts on said magnet for maintaining the magnet energized independently of the off-normal contacts, means effective, consequent to the actuation of said contacts to prevent the telephone transmitter being used, and coin actuated means effective to bring about the restoration of said magnet contacts.

4 In a paystation mechanism associated with a telephone set equipped with the usual talking instrumentalities' and with an impulse transmitting device, a. magnet energized consequent to the operation of the calling device to disable the talking equipment of the telephone set, and means operative consequent to the depositing of a coin to cause them-agnet to become deenergized. Q 5. In telephone system, a telephone set including a receiver. a transmitter, and a calling device; a paystation mechanism associated with said set, a magnet having an operating circuit including contacts closedupon operation of said calling device, to disable said transmitter, a holding circuit for said magnet effective to partially disable said off-normal contacts; a paystation device, in-

ill

receiver, and coin controlled contacts for disabling said magnet to enable the use of said transmitter and prevent the magnet from continuing to partially disable said receiver. 6. In a telephone system, a telephone set including a receiver, a transmitter, and a calling device; a paystation device including a magnet, a circuit for said magnet closed by the ofi-normal contacts of the calling device consequent to its operation to set up a connection, a locking circuit including contacts on said magnet for maintaining it energized in parallel with the telephone transmitter, a resistance included in said locking circuit to render the telephone transmitter inoperative, and contacts actuated by the deposit of a coin to shunt out the winding of said magnet to deenergize the same and thereby cause it to place a shunt about said resistance to again render the transmitter operative.

7 In combination with a telephone line equipped with a telephone set having the usual receiver, transmitter, and also having a calling device provided with contacts closed upon its initial operation; a paystation mechanism having a magnet connected in a bridge across the line including said contacts, contacts closed by said magnet consequent to the operation of said calling device to increase the resistance of the transmitter circuit to render it inoperative, and coin controlled contacts operative by a coin deposited in the paystation to cut down the resistance of the transmitter circuit to render it operative.

8. In a telephone system, a telephone set including a receiver, a transmitter, and a calling device, respectively; a paystation having a coin chute with a receptacle for receiving coins deposited in said chute; a magnet having contacts, closed when the magnet is energized, to disable said transmitter; means for energizing said magnet consequent to the actuation of the calling device, means actuated by a deposited coin for forcing the deenergization of said magnet, and means for preventing the passage of the deposited coin into the receptacle until the magnet has actually opened its contacts.

In witness whereof, I hereunto subscribe my name this 23d day of December, A. D.

GEORG BINIEK. In witness whereof, I hereunto subscribed my name this 23d day of December, A. D.

HEINRICH LANGNER. In witness whereof, I hereunto subscribe (50 my name this 23d day of December, A. D.

HINRICH DOHLE. 

